Answer this question truthfully
### Question: What causes Secondary amenorrhea?
### Response: Women who are pregnant, breastfeeding, or in menopause are not considered to have secondary amenorrhea.
Women who are taking birth control pills or receive hormone shots such as Depo-Provera may not have any monthly bleeding. When they stop taking these hormones, their periods may not return for more than 6 months.
You are more likely to have amenorrhea if you:
Are obese Exercise excessively and for long periods of time Have less than 15% - 17% body fat Have severe anxiety or emotional distress Lose a lot of weight suddenly (for example, with a strict diet or after gastric bypass surgery)
Other causes include:
Brain (pituitary) tumors Polycystic ovarian syndrome Premature ovarian failure Thyroid dysfunction
The following drugs may also cause missed periods:
Busulfan Chemotherapy drugs for cancer Chlorambucil Cyclophosphamide Phenothiazines